the sync of multiple ccch_scan in burst_ind branch
bob
avwiseav at gmail.com
Fri Oct 12 11:00:57 CEST 2012
Hello List
I am studying to start multiple ccch_scan simultaneously,but I meet some
problem.
I do as following:
1.I have two C118, caonnect them to the same computer
2.dump the sniffer rom
./osmocon -p /dev/ttyUSB0 -s /tmp/osmocom_l2_0 -m c123xor ./sniffer.bin
./osmocon -p /dev/ttyUSB1 -s /tmp/osmocom_l2_1 -m c123xor ./sniffer.bin
3.start the ccch_scan of burst_ind
./ccch_scan -s /tmp/osmocom_l2_0 -a *** -i 127.0.0.1
./ccch_scan -s /tmp/osmocom_l2_0 -a *** -i 127.0.0.1
but there is always one ccch_scan
give the following output after some time.
<0001> app_ccch_scan.c:296 GSM48 IMM ASS (ra=0x99, chan_nr=0x40, HSN=47,
MAIO=4, TS=0, SS=0, TSC=2)
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
Unknown SI
I think it is an syn problem, maybe caused by the usb bus. does anyone have
the idea?
thanks!
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